Wargroove (#1982)

## What is this fixing or adding?

Adjusted some map terrain. Made Ambushed in the Middle's HQ more exposed. Made Deep Thicket's AI spawn extra units. Adjusted some terrain in Rebel Village.
Moved item creation from generate_basic to create_items for (https://github.com/ArchipelagoMW/Archipelago/pull/1460)

worlds/wargroove/__init__.py

@@ -64,7 +64,7 @@ class WargrooveWorld(World):
             starting_faction = WargrooveItem(self.multiworld.random.choice(factions) + ' Commanders', self.player)
             self.multiworld.push_precollected(starting_faction)
 
-    def generate_basic(self):
+    def create_items(self):
         # Fill out our pool with our items from the item table
         pool = []
         precollected_item_names = {item.name for item in self.multiworld.precollected_items[self.player]}